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Tips for driving safely in fog

Before you drive — and during your trip — check weather forecasts. If there is a fog warning, delay your trip until it clears. It could save your life. The best thing to do is to avoid driving in fog. If you are caught driving in fog, follow these safe driving tips:


  • Pay full attention to your driving.
  • Slow down gradually and drive at a speed that suits the conditions.
  • Use your low-beam lights. The high beam reflects off the moisture droplets in the fog, making it harder to see.
  • If you have fog lights on your vehicle, use them, in addition to your low beams.
  • Be patient. Avoid passing, changing lanes and crossing traffic.
  • Use pavement markings to help guide you. Use the right edge of the road as a guide, rather than the centre line.
  • Increase your following distance. You will need extra distance to brake safely.
  • Look and listen for any hazards that may be ahead.
  • Watch for any electronically operated warning signs.
  • Keep looking as far ahead as possible.
  • Keep your windows and mirrors clean. Use your defroster and wipers to maximize your vision.
  • If the fog is too dense to continue, pull completely off the road and try to position your vehicle in a safe parking area. Turn on your emergency flashers, in addition to keeping on your low-beam headlights.


  • Don’t stop on the travelled portion of the road. You could be hit from behind.
  • Don’t speed up suddenly, even if the fog seems to be clearing. You could find yourself suddenly back in fog.
  • Don’t speed up to pass a vehicle moving slowly or to get away from a vehicle that is following too closely.


  • Watch your speed. You may be going faster than you think. If so, reduce speed gradually.
  • Leave a safe braking distance between you and the vehicle ahead.
  • When visibility is reduced, use your low-beam lights.
  • Remain calm and patient. Don’t pass other vehicles or speed up suddenly.
  • Don’t stop on the road. If visibility is decreasing rapidly, pull off the road into a safe parking area and wait for the fog to lift.